Glass Bottom Dishes are used in the fields of Life Science and Environmental Research, Molecular and Cell Biology, Cell Culture and Cell Physiology, Biotechnology, Neurology, Pathology, Pharmacology and more. These sterile tissue culture grade polystyrene glass bottom WillCo Wells Petri dishes with lid are available in two sizes, 35 x 10mm and 50 x 7mm, with clear or black plastic sidewalls. Through their advanced design features, they provide exceptional image quality needed for use on inverted microscopes and for applications such as high – and super resolution image analysis, microinjection and electro-physiology recording of fluorescent-tagged cells.